[UM-LINUX] SMTP auth with sendmail?

[cgpp]

Does anyone here actually have this set up and running? If so, can you  
post your sendmail.cf or better yet sendmail.mc and explain the cert  
stuff?

My ISP (Heller) "upgraded" my account and now I can't get email out.  
It used to work simply by auth'ing to the IMAP server, but now it  
seems this doesn't work anymore. I've found relatively little stuff on  
the web; most is directed at setting up sendmail auth from the server  
side.

thanks!

Judah